Add comment to ADC example

diff --git a/adc/main.c b/adc/main.c
index 6e4e02b..6589dd5 100644 (file)
--- a/adc/main.c
+++ b/adc/main.c
@@ -53,6 +53,7 @@ const struct pio_config common_pins[] = {
 const struct pio_config adc_pins[] = {
        { LPC_ADC_AD0_PIO_0_30, LPC_IO_ANALOG },
        { LPC_ADC_AD1_PIO_0_31, LPC_IO_ANALOG },
+       /* Note that these 4 ones are not used in this example */
        { LPC_ADC_AD2_PIO_1_0,  LPC_IO_ANALOG },
        { LPC_ADC_AD3_PIO_1_1,  LPC_IO_ANALOG },
        { LPC_ADC_AD4_PIO_1_2,  LPC_IO_ANALOG },